Portable aerator



Jul); 5, 1930. H. G. L. DE WHALLEY 1,770,512

PORTABLE AERATOR Filed Oct. 13, 1927 2 Sheets-Sheet l y 1930. H. G. DE WHALLEY 1,770,512

PORTABLE AEHATOR Filed Oct. 13, 1927 2 Sheets-Sheet 2 ATTOP/VEY Patented July 1 5, 1930 earner easier.

PORTABLE AEEATOE Application filed October 13, 1927, Serial No, 226,024, and in Great Britain September 23, 1927.

a liquid container, :1. pump to pump liquid therefrom, and an aeration device mounted on a delivery nozzle adapted to aerate liquid forced therethrough by the pum It is a further objectotthe invention to provide an improved arrangement of parts which are generally metallic and include little or no fibre or leather fittings such as would be lik iv to perish in hot climates.

it a further object of the invention to provide device whlch will give a sealed closure to the liquid preventing the entry I of impurities therein, such movlng parts of tne pumpas require lubrication being housed in separate chamber.

With these and other objects in view, the invention will now be described with reference to the accompanying drawings in which 1 illustrates ageneral view of a preferred form,

dig 2 being a vertical sectional view of part of Fig. 1, y

int. Fig. 3 being a sectional view on the line And Fig. 5 's a view of a detail, Figs. 2 to 5 ta en on anenlarged scale. Referring now to the drawing. the device comprises a container'l preferably formed of sheet metal and provided with a cover 2 integrally formed with a flange 3 to sit over the edgeot container 1 with cover 3 may be held down in any suitable by the provision of one or more liding catches 4, Figs. 1 and 3. The cover has depending therefromapump chamber Jitending beneath a pump housing 6, the "nip chamber and housing being separated a horizontal partition 7 The pump pisa tight fit. The

ten 8 is preferably metallic and works in side the chamber 5 with a sui'iiciently close fit, the chamber 5 being perforated or slotted freely as at 9 with valveless holes arranged a point just above the top of the piston when it is .at the bottom of its stroke, to permitliquid carried in the container 1 freely to enter into the chamber.

The pump piston 8 is mounted on a piston rod 10 passing upwardly through partition. 7 whichhas a central hole 11- surrounded by upstanding collar 12 adapted tohouse a gland secured by a nut 13 to close the hole. 11 eihciently. The piston rod 10 extends through the top plate 14 of the housing 6 in the form of a guide rod. Secured to the piston rod 10 by means of tapering pin is a cross-head 15 in which two laterally-e2:- tending pivots 16 are mounted by tapering pins. On the pivots 16 aremounted a pair of links 17 secured to the angle of abellcrank lever 18-provided with an operating, knob 19. The short arm of the lever 20. is, fulcrumed in a pair or cars 21 mounted on the top of cover'plate 2. A delivery pipe 22 extends from a' port at the top of pumpv chamber 5 upwardly through the cover plate 2 where it is supported by a shroud 23. It is fitted at its end with an aerator 24: shown separately in Fig. 5. v The aerator illustrated is similar to that described inmy co-pending patent application No. 214,713. Briefly it includes a pressurechamber and a whirling chamber 31 communicating with the pressure chamber by capillary passages32 so that liquid is deliveredinto thewhirling chamber 31 with asharp rotary motion. On emerging from the chamber 31 through a narrow passage 33 into a flared recess 34 at the mouth of the device, the liquic takes up air and is delivered in aerated form. The description of the aerator is merely by way of example, as the present invention is not limited to this construction of aerator.

Atray or stand a0 is preferably provided onone outer face of the container 1 to sun port glasses ready for use. Alternatively the delivery tube 23 may extend over the tray 40 which could then be used as a drip tray.

The operation of the device is as follows The container 1 is filled with liquid and the cover plate 2 firmly secured. The delivery pipe 23 being open to the air liquid passes from the container 1 into the pump chamber 5 through the holes or slots 9. On drawing forward the operating knob 19 ofbell-crank lever 18, pump iston 8 is raised in chamber 5 and liquid fbrced through the delivery pipe 22 to the aerator 24 whence it is delivered in aerated form. The liquid employed may either be pure water delivered into a glass containing a. fruit cordial or the like, or a made-up beverage may be carried in the container 1. In either case, the invention provides a portable device whereby the liquid is delivered into the glass in highly areated form.

It will be a preciated that when the pump piston falls back either under gravity or under a return spring not shown, or other wise, the back pressure will cause any liq uid remaining adjacent the cup-shaped recess 34 to be drawn back into the pipe 23 and so minimize or prevent drip.

7; Obviously the device may be combined;

With-any suitable means such as that of an outer-Jacket for cooling or heating the con- .tdined liquid.

.' Obvi'ousl in larger models the pump may arrange( to be pedal operated and it is to be understood that this form of operation is inclu by the term manual in the followc aims. claim: V r "1. A portable aerator comprising a liquid receiving tank, a cover plate removably sefrured to the upper open end of the tank, a housing removably secured to the cover plate ind depending within the tank, a pump chambernnderlying and in alignment with tbo honsing and separated therefrom, a pump piston operative within the pump chamber, said pump chamber being formed with openings to establish communication with the interior of the tank surrounding the chamber, a cross-head operative in the housing and connected with the pum piston, a manually operable lever supporter upon the cover and connected to the cross-head for operating the pump piston in both directions, and :1 delivery pipe in communication with the upper end of the pump chamber and leading to and rigidly supported beyond the cover of the tank.

2. A portable aerator comprising a liquid receiving tank, a cover plate removably secured to the" upper open end, of the tank, a housing removably secured to the cover plate and depending within the tank, a pump chamber underlying and in alignment with the housing and separated therefrom, av pump piston operative within the pump chamber, said pump chamber being formed with openings toestablish communication with the interior of the tank surrounding the chamber, a cross-head operative in the housing and connected with the pump piston, a manually operable lever supported upon the cover and connected to the cross-head for operating the pump piston in both directions, a delivery pipe in connnunication with the upper end of the pump chamber and leading to and rigidly supported beyond the cover of the tank, and an aerator carried by the free end of the delivery pipe. 3. A portable aerator comprising a liquid chamber, a housing depending therein with ports adjacent the bottom thereof, a piston reciprocating in said housing so that in its lowest position it lies below said ports, means permitting the outlet of liquid from said housing below said piston when in its lowest position, a delivery passage extending from the upper part of said housing, whereby on lift of the piston, liquid which has entered said housing through said ports is ejected through said delivery passage, and liquid in said chamber enters said housing below said piston, the liquid below said piston being ejected into said chamber when said piston is depressed, so that the operation of delivery of liquid from said chamber is effected without necessitating the provision of a valve.

In testimony whereof I afiix my signature.

HERMES GEORGE LAWRENCE de WHALLEY. 

